Speaker



FIG. 1 is a front perspective view of a speaker, showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a partially enlarged front perspective view thereof, taken from FIG. 1 ;

FIG. 10 is a partially enlarged front view thereof, taken from FIG. 3 ; and,

FIG. 11 is a partially enlarged rear view thereof, taken from FIG. 4 .

The broken lines in the drawings illustrate the portions of the speaker, which form no part of the claimed design. The dot-dot-dash broken lines of FIGS. 1, 3, 4, and 9-11 are included to show partially enlarged views only and form no part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 